# Sennheiser HD 25-1 II B (2012 model)
See [usage instructions](https://github.com/jaakkopasanen/AutoEq#usage) for more options and info.

### Parametric EQs
You can use filters 1-5 or 1-10. Apply preamp of -5.8 dB or -6.0 dB, respectively.

|   # | Type      |   Fc (Hz) |    Q |   Gain (dB) |
|-----|-----------|-----------|------|-------------|
|   1 | LowShelf  |       105 | 0.7  |         2.6 |
|   2 | Peaking   |       109 | 0.63 |        -3.8 |
|   3 | Peaking   |      1597 | 1.22 |        -2   |
|   4 | Peaking   |      4353 | 1.7  |         4.2 |
|   5 | Peaking   |      6633 | 3.99 |         4.7 |
|   6 | Peaking   |        41 | 2.13 |        -0.6 |
|   7 | Peaking   |       108 | 3.93 |         1.6 |
|   8 | Peaking   |       173 | 1.86 |        -1.6 |
|   9 | Peaking   |       341 | 1.79 |         1.7 |
|  10 | HighShelf |     10000 | 0.7  |         1.7 |

### Fixed Band EQs
When using fixed band (also called graphic) equalizer, apply preamp of **-4.4 dB** (if available) and set gains manually with these parameters.

|   # | Type    |   Fc (Hz) |    Q |   Gain (dB) |
|-----|---------|-----------|------|-------------|
|   1 | Peaking |        31 | 1.41 |         2.4 |
|   2 | Peaking |        62 | 1.41 |        -0.2 |
|   3 | Peaking |       125 | 1.41 |        -3.2 |
|   4 | Peaking |       250 | 1.41 |        -1.2 |
|   5 | Peaking |       500 | 1.41 |         1.1 |
|   6 | Peaking |      1000 | 1.41 |        -1.5 |
|   7 | Peaking |      2000 | 1.41 |        -2.1 |
|   8 | Peaking |      4000 | 1.41 |         4.4 |
|   9 | Peaking |      8000 | 1.41 |         2.2 |
|  10 | Peaking |     16000 | 1.41 |         3   |

### Graphs
![](./Sennheiser%20HD%2025-1%20II%20B%20(2012%20model).png)
